SharePoint Foundation 2010 - Save Site as Template

Hii All,

I get following issue when I try to save site as template;

SPSolutionExporter: Microsoft.SharePoint.SPException:

Feature definition with Id d2841d50-6456-4a60-ab6f-2d59f15f0f04 failed validation, file '8080_1ListInstances\ElementsFields.xml', line 3136, character 207:

 The 'Hidden' attribute is invalid - The value '' is invalid according to its datatype 'http://schemas.microsoft.com/sharepoint/:TRUEFALSE' - The Enumeration constraint failed.

     at Microsoft.SharePoint.Administration.SPSolutionPackage.SolutionFile.FeatureXmlValidationCallBack(Object sender, ValidationEventArgs evtargs)

     at System.Xml.Schema.XmlSchemaValidator.CheckAttributeValue(Object value, SchemaAttDef attdef)

     at System.Xml.Schema.XmlSchemaValidator.ValidateAttribute(String lName, String ns, XmlValueGetter attributeValueGetter, String attributeStringValue, XmlSchemaInfo s...

 4b1bc9d2-24c1-442f-81e1-e1087093ed6e

Please help me out as soon as possible,

Thanks in advance

Hope this helps, Thanks & Regards | Swapp1987